| 摘要 |
<p>A thermosetting pressure-sensitive adhesive comprising a photopolymerization product of a composition containing a) 100 parts by weight of a (meth)acrylic acid alkyl ester wherein the average carbon atom number of the alkyl group is from 2 to 14 and from 30 to 1% by weight of a monoethylenically unsaturated acid copolymerizable with the ester, b) from 0.02 to 5 parts by weight of a polyfunctional (meth)acrylate as a crosslinking agent, c) from 0.01 to 4 parts by weight of a photopolymerization initiator, and d) from 5 to 30 parts by weight of an epoxy resin, and not substantially containing a curing agent for the epoxy resin, and an adhesive sheet using the thermosetting type pressure-sensitive adhesive. These pressure-sensitive adhesive materials have a tackiness at normal temperature, easily temporarily adhere to an adherend, set in a short time by heating to show a high adhesive strength and a high heat resistance, and are excellent in the storage stability.</p> |
